subnet.im

AS37517CABO VERDE TELECOM, S.A

Cape VerdeRegistryAFRINICTypeEyeball

As of 10th November 2026, AS37517 (CABO VERDE TELECOM, S.A), an access network registered in Cape Verde with AFRINIC, originates 42 IPv4 prefixes covering 80.9k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 2,805th-largest of the 80,723 networks we see originating IPv4, and the largest of 7 in Cape Verde. It is seen behind 27 upstream networks, most often AS1299 (Arelion (fka. Telia Carrier)) and AS6424 (EDGOO NETWORKS), and in front of 5 downstream networks. 23% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

42

IPv6 prefixes

1

IPv4 addresses

80.9k

IPv6 /64s

4.3B

Upstream graph

The networks AS37517 is seen behind, one and two hops out, drawn from real AS paths.

Networks observed one and two hops upstream of AS37517 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

161

adjacent networks

Upstreams
2717%
Peers
12980%
Downstreams
53%

Networks carrying this one's traffic toward the rest of the internet.

Prefixes

All 43

The largest blocks AS37517 originates, widest first.

Largest prefixes originated by AS37517
PrefixAddressesVisibility
165.90.96.0/198.2k76/76
38.44.64.0/204.1k76/76
41.74.128.0/204.1k76/76
41.215.208.0/204.1k76/76
41.221.192.0/204.1k76/76
165.90.96.0/204.1k76/76
165.90.112.0/204.1k76/76
197.255.128.0/204.1k76/76
41.74.128.0/212k76/76
41.74.136.0/212k76/76

Routing health

How AS37517's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid23.3%10
  • Invalid0.0%0
  • No ROA76.7%33

Propagation

  • Globally propagated90% of full-feed peers or more100.0%43
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

Recent changes

Announcements that started or stopped since 11th Oct 2026.

No announcement by AS37517 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.